发明名称 METHOD FOR MAKING AN ANCHOR BOLT SLEEVE
摘要 A method for manufacturing an anchor bolt sleeve includes heat treating a steel blank, and cold working the steel blank into an anchor bolt sleeve subsequent to the heat treating, the anchor bolt sleeve being expandably receptive to a wedge of an anchor bolt.
申请公布号 US2011252857(A1) 申请公布日期 2011.10.20
申请号 US201113171804 申请日期 2011.06.29
申请人 POWERS FASTENERS, INC. 发明人 GAUDRON PAUL
分类号 B21D31/00 主分类号 B21D31/00
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